Family: William Mainwaring / Margaret de Warenne (F788)
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Randle Mainwaring (1367-1457)
|
Margery Venable (1369-1459) |
Randle Mainwaring (1398-1473)  |
| William Mainwaring (1366-1420)
|
| Margaret de Warenne (1378-1452) |
| Mary Mainwaring (1419-1445) |